1# REQUIRES: x86
2# RUN: llvm-mc -triple i686-windows-msvc %s -filetype=obj -o %t.obj
3# RUN: lld-link %t.obj -safeseh -out:%t.exe -opt:noref -entry:main
4# RUN: llvm-readobj --coff-basereloc --coff-load-config --file-headers %t.exe | FileCheck %s --check-prefix=CHECK-NOGC
5# RUN: lld-link %t.obj -safeseh -out:%t.exe -opt:noref -entry:main -debug:dwarf
6# RUN: llvm-readobj --coff-basereloc --coff-load-config --file-headers %t.exe | FileCheck %s --check-prefix=CHECK-NOGC
7# RUN: lld-link %t.obj -safeseh -out:%t.exe -opt:ref -entry:main
8# RUN: llvm-readobj --coff-basereloc --coff-load-config --file-headers %t.exe | FileCheck %s --check-prefix=CHECK-GC
9
10# __safe_se_handler_table needs to be relocated against ImageBase.
11# check that the relocation is present.
12#
13# CHECK-NOGC-NOT: IMAGE_DLL_CHARACTERISTICS_NO_SEH
14# CHECK-NOGC: BaseReloc [
15# CHECK-NOGC:   Entry {
16# CHECK-NOGC:     Type: HIGHLOW
17# CHECK-NOGC: LoadConfig [
18# CHECK-NOGC:   Size: 0x48
19# CHECK-NOGC:   SEHandlerTable: 0x
20# CHECK-NOGC:   SEHandlerCount: 1
21# CHECK-NOGC: ]
22# CHECK-NOGC: SEHTable [
23# CHECK-NOGC-NEXT:   0x401006
24# CHECK-NOGC-NEXT: ]
25
26# If we enable GC, the exception handler should be removed, and we should add
27# the DLL characteristic flag that indicates that there are no exception
28# handlers in this DLL. The exception handler table in the load config should
29# be empty and there should be no relocations for it.
30#
31# CHECK-GC: Characteristics [
32# CHECK-GC:   IMAGE_DLL_CHARACTERISTICS_NO_SEH
33# CHECK-GC: ]
34# CHECK-GC: BaseReloc [
35# CHECK-GC-NEXT: ]
36# CHECK-GC: LoadConfig [
37# CHECK-GC:   Size: 0x48
38# CHECK-GC:   SEHandlerTable: 0x0
39# CHECK-GC:   SEHandlerCount: 0
40# CHECK-GC: ]
41# CHECK-GC-NOT: SEHTable
42
43
44        .def     @feat.00;
45        .scl    3;
46        .type   0;
47        .endef
48        .globl  @feat.00
49@feat.00 = 1
50
51        .def     _main;
52        .scl    2;
53        .type   32;
54        .endef
55        .section        .text,"xr",one_only,_main
56        .globl  _main
57_main:
58        movl $42, %eax
59        ret
60
61# This handler can be GCd, which will make the safeseh table empty, so it should
62# appear null.
63        .def     _my_handler;
64        .scl    3;
65        .type   32;
66        .endef
67        .section        .text,"xr",one_only,_my_handler
68_my_handler:
69        ret
70
71.safeseh _my_handler
72
73
74        .section .rdata,"dr"
75.globl __load_config_used
76__load_config_used:
77        .long 72
78        .fill 60, 1, 0
79        .long ___safe_se_handler_table
80        .long ___safe_se_handler_count
81